[3] It is widespread, ranging from Alaska south to Arizona and Georgia.

[7] C. parviflorum is a highly variable species, which is a result of both hybridization and phenotypic plasticity.

They are:[9] C. parviflorum is a more upland plant preferring subacidic to neutral soils.

It is found primarily in mesic to dry-mesic upland forests, woodlands with deep humus or layers of leaf litter and shaded boggy habitats, but also in hill prairies and occasionally in wetlands with organic, well-drained, sandy soils.

Specifically, in fir, pine, and aspen forest between 6,000 and 9,500 feet (1,800 and 2,900 m), it prefers moderate shade to nearly full sun.